Rotary cutter.



C. PETERS. ROTARY GUTTER.

2. 1 0u 1 2 n. na Td d e t n a P nw 1 9 .1 0' 1 V. o N D E Tu I n! N o IT.. A o I T.. P. P A

a l l n0 9 o@ un 2 SHEETB*SHEBT1 M. 0. PETERS.

ROTARY GUTTER.

BO l u APPIIIIOATION FILED NOV.10, 1910. Patented Jan. 2

2 SHEETS-SHEET 2 To all whom it may concern:

nIL'rcNc. rn'rqens, or oma, Nnnnasxa.

aunar Be it lmown'that I, MILTON PETERS, a

` citizen of the United States, residing at Omaha in the county ofDouglas and State of Nebraska, |,have invented certain new and usefulImprovements in Rotary Cutters, of which the following is aspecilication.

This invention relates to certain new and i useful improvements inrotary cutters, or

i in the severalviews I* terial. l

` Primarily, the machine is designed for reducing alfalfa-hay,prairie-hay, corn products or any like material, and also yfor cuttingexcelsior, paper, hair, moss, wool', eott ton or similar fibroussubstances,` and also continuously and simultaneously separating. thefine reduced material from the c'oarser material requiring V'furtherreduction.

" The essential object of the invention is to simplify machines of thisgeneral class and to render the cntting mechanism of these machines'more eliective byarranging the saine so that the cutters act moreelliciently to shred, tear and cut the material by a shearing operation;and the invention consists ofthe parts and the constructions,

arrangements vand combinations of parts which I will hereinafterdescribe and claim.

^ In the eeompnying drawings ,frming part of this specification 'and inwhich simiar reference'characters indicate like parts `igure I is avertical, longitudinali sectional view of a rotary cutF- ter lembodyingthe 'salient features of m inmachines for disintegrating or reducing mayvention. Fig.-2is an enlarged sidee evation of one of the lmife-carryinghubs detached. Fig. 3'is.a vertical sectlonal view onvthe line X--X ofFig. 2. Fig. 4' is a detail' in plan view of one ofthe cutting blades.Fig. 5 1s a .part side elevation and art`sectional view oftheecuttingblade o Figui. Fig. `6 illustrates a plurality of the hubs and cuttingblades arranged side byA side ontlie driving shaft. `In carrying out my`invention I mount the machine upon a suitable bed or foundation, A,and-I construct the inain frame oit-'basing'. with parallell sides,B,'and connecting bac and to plates C, so as to form substantially aninc os'ed chamber in which the 4rotary cutter'operates, the sides of theframe or and also the tcp being extended in a forward direction, as atD, to forn sub-l stantially an inclosed feedin chamber, supplied withcomplementary devices,

Specication of Letters Patent. Application led November 10, 1810. SerialBio. 81,5 67.

to the machine.

. Patented Jan. 2,1912.

which chamber open at the mit theadmission' tothe feeding devices of thematerialto'be reduced. f f

4 In the Aherein illustrated 'embodiment of my invention, the materialris fedto the receivmg chamber ofthe casin or frame by means of anendless conveyerelt, E, which is horizontally disposed and passes oversuitable end drums, e, e', one of which has its tension of-the beltmay'be regulated.

' Various means 'may be. employed for securing the adjustment noted inFig. 1. I disclose for the purpose theY horizontal frontv to perjournalboxes, e?, adjustably mounted on a. horizontal frame or support,F,'wherebythe screws, G, having many-sided outer ends adalpted for thereception of a wrench or like too IWainm the receiving chamber 0f theframe or casing and mounted in the sides thereof over the fdelivery, endof the conveyer-belt,-E, suitable feed rolls H, the innermost one ofwhich is shown ashaving its shaft, k, mounted in journal boxes, `h', towhich are connected vertical screws, h2, whereby said roll may be raisedand lowered relatively to the carrying' surface of the b'elt andaccording to the 'nature 'of the material undergoing treatment. `Thefeed-rollers may be of any approved they are herein 'shown asbeingzfarmed' with rows oper'pheral 'teeth that they might 'the moreeilicie'ntly engage the hay, or other material, and positivelyhereinafter described.

feed it to the cutting devices,

Qn theouter of the shafts, It, oftho feed rblls are Sprocket-whois, 5,around which passes asprccket chain, 6,' for operating the rolls in thesame direction, the said sprocket-wheels a' v dchain being shown bydotted lines inFigJl.

It will be observed? that the receiving i chamber in which thefrollsoperate, is subjstantially an inclosed chamber, F'thisbeing desirable astothe elimination' of the ohjectionable'f-"resence of dust, exterior 'gobetter provideV for this function of the machine, l'the' top of thecasing is pierced with opening, 8,- which a pipe or connection, notshown, from alsiiit# able suction'orblastlinay lead, forcondnctl ingthedust and neparticles to. any suitable receiver or machine.

It might also be here reinarkedthat the top or cover portion of thecasing may be provided with sections, 9 and 10,511? one for thereceiving chamber of the casing and the other for the cutting chamberhereinafter mentioned, which sections are hinged at 11 and 12, wherebylaccess may be had to the chambers and to the feed-rolls and` rotarycutter.

The leading feature of my invention 1s the construction' yandarrangement of the parts constituting the rotary cutter and whichfeature VI will now describe. This cutter consists gf a series of hubs,13, placed side by side upon the shaft, 14:, and fixed thereto, each ofsaid hubs comprising a hub.- portion, 15,fan-dfgintwardly extendingarms, 16.A Byv refereiicei'to Fig. 3, it will be seen thatth'ejouter'end of each arm 16, is widened toform' a broad flat seat, 17,fr the blades or cutters, 18. 'f The widened seat portions aretransversely linclined as shown, the inclination given the blade orcutter being common to all the blades or cutters of a particularhub-member. `In practice, I have attained the best results by placingthe hubs in po- 5 s'ift'iorfienfthe shaft, 14, in such manner thatthe'frblades or cutters of alternate hubs incline oppositely to thecutters ofv adjacent hubs. In other words if the cutters or blades ofthe first hub incline to the right,

the blades or cutters of the next hub will inl eline to the left, asillustrated in Fig; 6.

The blades are spaced apart around the circumference of the rotarycutter andthe hubs are so set on the shaft relativel to each other thatthe blades of alternate ubs substantially register with the spaces be-Acutters thus formed producing an eiiicient cutting medium for anymaterial of the character before described coming into the range ofaction of the blades and a suitable stationary cutter-bar. f

The blades, 20, consist ofpieces of steel or other suitable material ofsubstantially the form of a parallelogram'; that i's each bladerepresents substantially'` a rightflined quadrilateral figure, whoseopposite edges are parallel and equal. -The disposition of the blades issuch, however, that the side edges of each blade stand parallel witheach other and in a plane which is at rightangles to the shaft, `14, orthe axis about which the hubs rotate, while the cutting edges extend atan incline from one side edge ofv a blade to the other side edgethereof. Each blade has its opposite inclined edges beveled to form acutting edge, and the bevel of one is reversed or opposite to 'that ofthe other edge, whereby the blade may be reversed and either cuttingedge employed for the ydisintegration of the hay or other material.Further, each blade is provided with one orA more elongated slots,

21, Ithrough which bolts, 22, pass to rev rmovably secure the blade toAtheir-broad seat portion provided at the outerlends of the arms, 16.

By the arrangement described, the combined blades form what might betermed a continuous cutter of individual sections each operating with ashearingxaction to divide the hay or material passing over the'stationary cutter-bar. The number of blades carried by each hub, thenumber of hubs arranged side by side and the means employed for securingthe blades to the arms, 16, may be varied to meet the size and capacity7of lthe machine or to satisfy the desire or requirements, withoutdeparting from the scope of the invention.

The stationary cutter-bar, 23, is fixed to the frame or casing at theinlet to the chamber in which the rotary cutter operates; it is shown assubstantially rectangular'in the blades of the rotary cutter, .whenl theedge previously used has become dull.

The chamber in which the cutter, rotates -is inclosed by a curvedscreen, 24, of suitable' material and the material divided by the actionof the movable blades andst'ationary cutter-bar, enters the chamber andthe particles fine enough pass through the meshes be conducted to anyydesired point of de:

posit.

The material of which the screen is composed includes any materialcommonly used for screening purposes, said screen being supported andsecured in place by means of angle-bars, 27, or like flanged membersbolted to the inside of the casing. Other forms of members capable o'fdisintegrating or reducing material may be used in place of the bladesshown and described and without disturbing the arrangement of separatehubs disposed side by side von a common shaft; the said members however,are designed to each rotate in. a circular path slightly',` different tothe one immediately preceding it, and the character ofthe final prductdepends upon the adjustment of the blades relatively to the stationarycutterbar,4 the size of the meshes o'r openings in the screen, andwhether the material acted ted by a belt, 30, to a band wheel, 31, on`

the shaft of the rotary cutter, which shaft also carries a small pulley,32, from which a crossed-belt, 33, extends lto a large pulley, 34,on-the shaft, 35. Apinion, 36, on-the shaft, 35, meshes4 with a large'ear-wheel,

,37, on the shaft,'38,and a pinion, 39, on

said shaft, 38, engages a gear-wheel, 40,

Iso

85 f cross-section so that it may be reversed to present a new cuttingedge to the action of which in turn drives a pinion, 41, on the shaft ofoneof the drums, e, around which the belt conveyer, E, passes. From theshaft, 38, a sprocket chain, 42, extends to one of the feed rolls, whilea second sprocketchain, 43, connects these rolls so that they rotate inthe same direction. This train of operating gears is no essential partof the invention and is only shown diagrammatically. y y

Having thus described my invention what I claim as new and desire tosecure by Letters Patent, is: v

l. The combination with a casing, a fixed cutter bar, and a radialshaft, of a cutter having a plurality of series of blades arranged sideby side uponv said shaft, the blades of each series being transverselyinclined and the blades of alternate series being inclined oppositely tothose of the series upon each side thereof, each of said blades having acutting edge substantially parallel 'with said axis.

2. The combination with a casing, a fixed cutter-bar, and a radialshaft, of a cutter consisting of a series of hubs arranged side by sideupon said shaft, each of said hubs carryin an annular series of spacedblades,

j the bla es of each series being transversely inclined and the bladesof alternate hubs being arranged transversely in line with the spacesbetween adjacent blades of contiguous hubs, said blades'having theircutting edges substantially parallel with the axis of the hubs.

3. The combination with a casing, a fixed cutter-bar, and Va rotaryshaft, of a cutter consistingof a series of rotatable hubs ar` rangedinrsubstantially close 4order side by side upon said shaft, each of saidhubs having outwardly extending arms, and cutting blades fixed to theouter ends of the arms and spaced apart and arranged in annular seriesso that they successively sweep past the edge of the fixed cutter-bar,the blades of each hub being transversely inclined in the same'directionand the blades of alternate hubs being oppositely inclined and arrangedtransversely in line with the spaces between adjacent blades of acontiguous hub on veach side thereof.

4. A rotary cutter having a--plurality of series of blades fashioned inthe form of a parallelogram and turnable about a com- `monaxis, theblades of each series being 4ing, a plurality of outwardly extendingarms spaced apart at their outer ends, and having said ends formed withwidened transversely .inclined portions, blades fixed to saidtransversely inclined portions of the arms and so arranged that theblades carried by one hub stand transversely in line vwith the spacesbetween adjacent blades of contiguous hubs, the blades of alternate hubsbeing transversely inclined in an opposite direction to the blades ofintermediate hubs.

6. The combination with a casing having an internal screen chamber and astationary cutter-bar, of a rotary cutter operable in said chamber andconsisting of a series of hubs arranged side by side upon a common axis,and having transversely inclined blades spaced apart around thecircumference, the cutters of alternate hubs being inclined oppositelyto those of intermediate hubs and standing transversely in line with thespaces eiyveen adjacent blades of said intermediate 7. Thecombinationwith a casing having an internal screen chamber and astationary cutter-bar, of a rotary cutter operable in saidhamber andconsisting of a series of hubs arranged side by side upon a common axis,and having transversely inclined'blades spaced apart around thecircumference, the cutters of alternate hubs being inclined op` positelyto those of intermediate hubs and standing transversely in line with thespaces between adjacent blades of said intermediate hubs, said bladeshaving substantially the form of a parallelogram.

l In testimony whereof I affix my signature in presence of twowitnesses. A

f MILTON C. PETERS. Witnesses: v W. T. BURNS, A. FRALICH.

